package demo3;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 87111
 * Date: 2025-05-25
 * Time: 19:34
 */
class Tire {
    //轮胎类
}
class Engine {
    //发动机类
}
public class Car {
    public Tire tire;
    public Engine engine;
}
